Eaton P3BKD3400SP Circuit Breaker Plug-in - 65 kAIC
Part Number: P3BKD3400SP
Quick Summary
The Eaton P3BKD3400SP circuit breaker plug-in unit provides reliable overcurrent protection for industrial busway systems. When projects demand fast replacements and minimized downtime, this sprinkler-proof plug-in design reduces field service time and wiring errors. Certified to CSA, UL 857, and IEEE standards with NEMA compliance, it offers safety, reliability, and interoperability across facilities. With a three-pole KD frame and a 400 A rating, it supports large busway runs while offering straightforward mounting, testability, and 50% integral or housing grounding options to fit varied installation practices. This combination translates to lower lifecycle costs, improved reliability, and easier spare-part management for industrial teams.
Product Information
Extended Description
P3BKD3400SP Eaton: Eaton Pow-R-Way III circuit breaker plug-in unit, Sprinkler-proof plug-in, Busway, Three-pole, KD, Plug, Breaker, K Frame (70-400 A), 400A, 65 kAIC at 240 Vac, 35 kAIC at 480 Vac, 25 kAIC at 600 Vac, None, 50% Integral or Housing Ground
Product Name
Eaton Pow-R-Way III circuit breaker plug-in unit
Catalog Number
P3BKD3400SP
UPC
786685268224
Product Length/Depth
13.29 in
Product Height
34.41 in
Product Width
7.79 in
Product Weight
53 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Compliances
NEMA Compliant
Certifications
CSA Certified ANSI UL 857 IEEE Certified
Circuit Breaker Frame
K
Design
Pow-R-Way III
Grounding Options
50% Integral/Housing
Number Of Poles
Three-pole
Type
Breaker
Amperage Rating
400A
Interrupt rating
65 kAIC at 240 Vac, 35 kAIC at 480 Vac, 25 kAIC at 600 Vac
Application
Busway
Product Category
Plug
Special features
Sprinkler-proof plug-in
Sprinkler-proof plug-in design is a core feature. Business impact: it reduces maintenance downtime and wiring risk during replacement. Application: ideal for sprinkler-protected busway installations where access is limited, enabling fast service without compromising safety. Three-pole KD-frame Pow-R-Way III construction delivers high-current protection with compact form factor. Business impact: supports scalable protection for dense busway networks while simplifying stock and spares. Application: large facilities with factory floor consolidation benefit from quicker switch-outs and reduced panel space requirements. Interrupt ratings of 65 kAIC at 240 Vac, 35 kAIC at 480 Vac, and 25 kAIC at 600 Vac provide robust fault interruption. Business impact: minimizes equipment damage and downtime, improving overall plant availability. Application: critical processes requiring strong short-circuit resilience in varying voltages. Grounding options at 50% integral or housing grounding offer flexible installation. Business impact: supports diverse grounding schemes to meet local code requirements. Application: retrofit projects and new builds seeking adaptable safety strategies. NEMA compliant and CSA/UL/IEEE certifications reduce compliance risk. Business impact: simplifies regulatory audits and supplier qualification. Application: regulated industries such as food, chemical, and manufacturing facilities benefit from validated performance. Compatible with Sprinkler-proof plug-in designs and busway configurations. Business impact: accelerates installation in modern power distribution layouts. Application: new-build campuses and retrofits where uptime and standardization matter.
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FAQs
The P3BKD3400SP uses a three-pole KD frame within the Pow-R-Way III family, designed for sprinkler-protected plug-in installations on KD busways. It supports straightforward plug-in mounting, compatible latching and grounding arrangements, and 50% integral or housing grounding. This configuration simplifies field upgrades, reduces wiring errors during swaps, and helps standardize protection across mixed busway runs.
This unit is rated for 400 A with an interrupt rating of 65 kAIC at 240 Vac, 35 kAIC at 480 Vac, and 25 kAIC at 600 Vac. These ratings ensure robust protection against high short-circuit fault currents common in industrial busways. The multi-voltage capability supports diverse facility voltages without sacrificing fast fault interruption, improving equipment preservation and uptime in critical production lines.
Yes. The P3BKD3400SP is specifically described as a sprinkler-proof plug-in unit designed for busway protection. It carries CSA Certification, UL 857 recognition, and IEEE certification, with NEMA compliance. These certifications validate safety, electrical performance, and interoperability within code-compliant facilities, making it suitable for controlled sprinkler zones and regulated environments.
Plug-in breakers like the P3BKD3400SP reduce maintenance time by enabling rapid replacement without dismantling panels or re-wiring. The unit's sprinkler-proof design and KD-busway compatibility streamline alignment and bolting, while 50% integral/housing grounding options simplify code-compliant grounding. Overall, engineers typically see lower mean time to repair (MTTR), fewer commissioning steps, and fewer propagation errors during routine maintenance.
The combination of high interrupt ratings, sprinkler-proof plug-in capability, and broad certification coverage translates to longer service intervals and reduced spare-parts inventory in dense busway networks. While initial cost may be higher than basic plug-ins, faster replacements, lower downtime, and easier compliance audits yield meaningful lifecycle cost reductions, improved plant availability, and predictable maintenance budgeting for industrial facilities.